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Manual - Blender 2.46

[edit] Transformation Constraint

Mode: Object Mode and Pose Mode

Panel: Object Context → Constraints

Hotkey: F7

[edit] Description

This constraint allows transforms to be converted from one type to another, and also from one range to another. Typical uses for this include gears (*see note), and rotation based on location setups.

NOTE: unfortunately, this will not work for gears, as there are some underlying problems related to the math which mean that this cannot work nicely

The user-interface for this is a bit complex, but can be broken down quite simply:

   * Left = Source (from Target) Transforms, Right = Destination (for Owner) Transforms
   * Controls on Left: Ranges for each axis (x,y,z) of source transform
   * Controls on Right: Which source channel (x,y,z) to read from for each channel, and range to map input range to
   * Loc/Rot/Scale toggles control which transform to affect
   * Extrapolate toggle is used to specify whether values outside of ranges should be extrapolated instead of just clipped

It should be noted that when mapping transforms to locations (i.e. Destination = Loc), the owner's existing location is added to the result of evaluating this constraint.